Hydraulic elevator.



INVENTOH A TTOR/VE YS PATBNTED OCT. sb, 190a.

W. L. LELAND. HYDRAULIC ELEVATOR. APPLIOA'ITION FILED MAR 2, 1900 WITNESSES: fwa@m C. 5, 57,; W

WlLLlAM LES'JER LELAND, OF

SAN FRANUlSCO, CALIFORNIA.

Specification of Letters Patent.

Patented. Oct. 530, 1 906.

Application filed March 2 1906. Serial No. 303,861.

To {ZZZ whom 1 0' 711/017 con/corn.-

Be it kilo-mi that i, Vin-LIAM LESTER LE- LAND, a citizen of the Uniteil States, and a resident of San Francisco, in the county of San Francisco and State oi California, have made certain new and useful improvements in l'lydrz'iulic lillevstors, of which the following is a specii ication.

My invention is an improvement in hydrz'i-ulic elevators ol the type used in pincermining; and it cousis in certain novel con.- structions and combinations of ports hereinafte i'loscribcd and claimed.

Referring to the din 'ings forming a part hereof, Figure l is a longitiulinal se Lion of a part of my improved elevator in posilion in the pit. Fig. 2 is a so. ion on the line 2 201 Fig. 1 looking in the dircct ion ol the arrow. Fig. 3 deliiil perspective View, partly in section, of the ring he Ying the annular chamher; and Fig. "l a front vicw'ot' the jacket.

in the present embodiment of my invention ll 'iroi'idc an elbow-shaped casting A, of steel or other suitable material, having a longitudinal opening a thcrcthrough. The ends ol' the casting around the opening arc intcri'ially screw-threaded, as at (L (1., and the arch ol the casting is provided with a pivotpin (1, adapted to engage a bearing 1) in. a plate B secured to beam 1), arranged at a suit able angle within the pit.

One end of the casting is proiidcd with an internal shoulder it below the screw-threaded portion. a, and the inner taco of the said shoulder a" is screw-lbreaded, as at a second shoulder c being arranged below the screwthretdcd portion (1 Arranged longitudh .nally upon the lOWOl' face of ihe interior of the casting the usual longitudinal vane o, adapted. to preveni swirling of the outer, and the casting is provided *lvith, outward enliar' enieuis 11. adjacent to the seraw-threadedl portion. A nozzle (1, having its lower end scrcw-thrcaded. is engaged with the scrowthreaded portion a7, the opening c through the nozzle being reduced at the upper end thereof and the said nozzle at its upper cud being externally screw-lhreadcd, us ai; c and having a shouldcr arranged below the screw-thread0d portion for a purpose to be hereinz'ifter dcscribed. A cylindrical j: eket D, having a circular opening d in. th: side thereof and externally scrcw-rhremh i at each end, as at d" (1*, eu nigcsone olthe rem threaded piutions e of the casting. l internal lining (Z having a circular opening cl registering with the opening of the jacket, is arranged thcrcm'ithin, and the said jacket is concentricwith tho nozzle. The upper end of the jacket I) is engaged by a reducing-ring l1], thc said ring having a llangc c internally screw-threaded, as at e, for engaging the sorew-threaded portion of the jacket and the inner surlaco of the ring is screw-threaded, as zit c, for engagement by the screw-tineaded end 7 of ,a discharge-casing G, the upior end oi the said casing extending to a suitable point whore-shy to deliver the material passed outward through lhc elevator. A throatliner ll, oi manganese steel or other suitable .material, is arranged within the dischargecasing G, the lower end of the said liner projecting somewhat below the ring E, The liner H is reduced centrally, as at h, and slopes outwardly therefrom at each end and is maintained in its proper position by a setscrew it, threaded through the casing G and engaging an opening it in the side of the ring or collar. A wear-plate comprising a cylindrical lining K is arranged above the throatliner H, the said lining being arranged within the casing G and resting upon the upper edge oi said throat. The opposite end of the casting A is engaged by one end of an externallyscrow-thrcar'l ed sleeve in", the opposite end of the sleeve being engaged by an elbow M having both of its ends internally scrmv-threaded, and to the outer end of the elbow is connected the Water-supply pipe N.

It will be understood that tho water from the ilunie passes through a supply-pipe N, through the casting A and the nozzle C, past the circular opening in the jacket D, and out at tho disclnirgdpipe G, carrying with it the water, sand, and gravel entering through the circular opening in the casing, the device act-- ing in a similar manner to that of the ejectorpump.

Dre :5 ice it has been found that when the water in the pit is lowered to a point but slightly above the opening in the casing the ejector refuses to work, becoming Waterlogged, and it is necessary to introduce air or foreign substances into the sup ply-stream or to introduce air through the circular opening in the aclict. This is a very dill icult operation to i )orform, since it must be done spccd ily, as the pit soon "fills with water and valuable time is lost in searching for the opening in the :ieket whereby to introduce ail. To

municating with the inner face of the ring and means for supplying air to the annular chamber.

5. n a paratus of the class described, the 110ml ation with the elbow-shaped casting having a longitudinal opening, and a pivotpin for engaging a fixed bearing, of a supplypipe connected to one end of the casting, a

nozzleconnected to the opposite end of the casting, a rotatable jacket having a side opening and concentric with the nozzle, a discharge-pipe leading from the jacket, a ring having an annular chamber communieating with the inner face of the ring, encircling the nozzle and concentric therewith, the diameter of the opening of the ring being reater than that of the nozzle, and means i or supplying air to the annular chamber.

6. n apparatus of the class described, the combination with the hollow elbow-shaped casting having a 'pivot-pin for engaging a fixed bearing, of a supply-pipe connected with one end of the casting, a nozzle connected with the opposite end, a rotatable jacket having a side opening, encircling the nozzle and concentric therewith, a dischargepipe leading from the jacket, a ring concentric with the nozzle, said ring having an annular chamber provided with openings traversin the inner wall thereof, and means forsupplying air to the annular chamber.

7. in a paratus of the class described, the combination with the hollow casting, having a pivot-pin for engaging a'fixed bearing, a supply-pipe rotatably connected with one end of the casting, a nozzle connected with the opposite end, a acket having a side opening, encircling the nozzle and rotatably connected with the casting, a discharge-pipe leading from the jacket, and means for supplying air to the water passing through ,the nozzle, comprising a hollow ring provided with perforations and arranged concentric zle connected with the o posite end of they casting, a cylindrical jac ret having a side opening, encircllng the nozzle and connected therewith, and a drseharge-p1pelead1ng from the acket and in alinement with the opening of the nozzle, said acket being rotatably connected with the casting.

9. In apparatus of the class described, the combination of a hollow elbow-shaped casting havinga pivot-pin for engaging a fixed bearing, a water-supply pipe rotatably connected to one end of the casting, a reducingnozzle connected with the opposite end of the casting, a jacket having a side opening, encircling the nozzle and rotatably connected with the casting, and a discharge-pipe leading from the jacket in alinement with the nozzle.

10. In apparatus of the class described, the combination with the hollow elbowshaped casting, mounting the casting, a water-supply pipe rotatably connected to one end of the casting, a nozzle connected'with'the opposite end thereof, a jacket having a side opening encircling the nozzle and rotatably connected to the casting, and a discharge-pipe leading from the jacket in alinement with the nozzle, said dischargepipe being rotatably connected to said jacket.

WILLIAM LESTER LELAND.

Witnesses:

SoLoN C. KEMON, C. E. TRAINOR.

of 'means for rotatably 

